What an elegant little game! First off, I love the character design of Butt Pooper! Kind of like a clay style a la the likes of Gang Beasts or Human: Fall flat, but with very fluid movement which feels energetic and chaotic. I think like the movement is while not the most consistent ever, fairly intuitive and fun to mess around with. Honestly it's just a really great feeling game!
I also had issues with the out-of-bounds detection on level 4, but managed to get past it and get to the end. The story is very succinct and fitting, and overall I came out of this game very amused.
Well done and thanks for submitting!